From 1570432db3ccdade41067bf891364239355bd852 Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Mon, 11 Jun 2007 17:38:27 +0000
Subject: [PATCH] 	* cygwin.din (confstr): Export. 	* posix.sgml
 (confstr): Move to list of implemented SUSv3 functions. 	* sysconf.cc
 (confstr): Implement. 	* include/cygwin/version.h: Bump API minor number.

---
 winsup/cygwin/ChangeLog                |  7 ++++
 winsup/cygwin/cygwin.din               |  1 +
 winsup/cygwin/include/cygwin/version.h |  3 +-
 winsup/cygwin/posix.sgml               |  2 +-
 winsup/cygwin/sysconf.cc               | 48 ++++++++++++++++++++++++++
 5 files changed, 59 insertions(+), 2 deletions(-)

diff --git a/winsup/cygwin/ChangeLog b/winsup/cygwin/ChangeLog
index 6dd0e0249..f974f7959 100644
--- a/winsup/cygwin/ChangeLog
+++ b/winsup/cygwin/ChangeLog
@@ -1,3 +1,10 @@
+2007-06-11  Corinna Vinschen  <corinna@vinschen.de>
+
+	* cygwin.din (confstr): Export.
+	* posix.sgml (confstr): Move to list of implemented SUSv3 functions.
+	* sysconf.cc (confstr): Implement.
+	* include/cygwin/version.h: Bump API minor number.
+
 2007-06-05  Corinna Vinschen  <corinna@vinschen.de>
 
 	* ansi.sgml: Delete.
diff --git a/winsup/cygwin/cygwin.din b/winsup/cygwin/cygwin.din
index eb982f7be..2e64d2b6f 100644
--- a/winsup/cygwin/cygwin.din
+++ b/winsup/cygwin/cygwin.din
@@ -195,6 +195,7 @@ _close = close SIGFE
 closedir SIGFE
 _closedir = closedir SIGFE
 closelog SIGFE
+confstr SIGFE
 connect = cygwin_connect SIGFE
 copysign NOSIGFE
 _copysign = copysign NOSIGFE
diff --git a/winsup/cygwin/include/cygwin/version.h b/winsup/cygwin/include/cygwin/version.h
index bbee7428e..49ad569ca 100644
--- a/winsup/cygwin/include/cygwin/version.h
+++ b/winsup/cygwin/include/cygwin/version.h
@@ -308,12 +308,13 @@ details. */
       166: Export sem_unlink.
       167: Add st_birthtim to struct stat.
       168: Export asnprintf, dprintf, _Exit, vasnprintf, vdprintf.
+      169: Export confstr.
      */
 
      /* Note that we forgot to bump the api for ualarm, strtoll, strtoull */
 
 #define CYGWIN_VERSION_API_MAJOR 0
-#define CYGWIN_VERSION_API_MINOR 168
+#define CYGWIN_VERSION_API_MINOR 169
 
      /* There is also a compatibity version number associated with the
 	shared memory regions.  It is incremented when incompatible
diff --git a/winsup/cygwin/posix.sgml b/winsup/cygwin/posix.sgml
index 5e9a60bbc..d236989f3 100644
--- a/winsup/cygwin/posix.sgml
+++ b/winsup/cygwin/posix.sgml
@@ -75,6 +75,7 @@ also ISO/IEC 9945:2003 and IEEE Std 1003.1-2001 (POSIX.1-2001).</para>
     close
     closedir
     closelog
+    confstr
     connect
     copysign
     copysignf
@@ -1070,7 +1071,6 @@ also ISO/IEC 9945:2003 and IEEE Std 1003.1-2001 (POSIX.1-2001).</para>
     clog
     clogf
     clogl
-    confstr
     conj
     conjf
     conjl
diff --git a/winsup/cygwin/sysconf.cc b/winsup/cygwin/sysconf.cc
index 64f5bfaa1..dddf2c362 100644
--- a/winsup/cygwin/sysconf.cc
+++ b/winsup/cygwin/sysconf.cc
@@ -248,3 +248,51 @@ sysconf (int in)
   set_errno (EINVAL);
   return -1L;
 }
+
+#define ls(s)	sizeof(s),s
+
+static struct
+{
+  size_t l;
+  const char *s;
+} csa[] =
+{
+  {ls ("/bin:/usr/bin")},		/* _CS_PATH */
+  {0, NULL},				/* _CS_POSIX_V6_ILP32_OFF32_CFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_ILP32_OFF32_LDFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_ILP32_OFF32_LIBS */
+  {0, NULL},				/* _CS_POSIX_V6_ILP32_OFF32_LINTFLAGS */
+  {ls ("")},				/* _CS_POSIX_V6_ILP32_OFFBIG_CFLAGS */
+  {ls ("")},				/* _CS_POSIX_V6_ILP32_OFFBIG_LDFLAGS */
+  {ls ("")},				/* _CS_POSIX_V6_ILP32_OFFBIG_LIBS */
+  {ls ("")},				/* _CS_XBS5_ILP32_OFFBIG_LINTFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_LP64_OFF64_CFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_LP64_OFF64_LDFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_LP64_OFF64_LIBS */
+  {0, NULL},				/* _CS_XBS5_LP64_OFF64_LINTFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_LPBIG_OFFBIG_CFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_LPBIG_OFFBIG_LDFLAGS */
+  {0, NULL},				/* _CS_POSIX_V6_LPBIG_OFFBIG_LIBS */
+  {0, NULL},				/* _CS_XBS5_LPBIG_OFFBIG_LINTFLAGS */
+  {ls ("POSIX_V6_ILP32_OFFBIG")},	/* _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS */
+};
+
+#define CS_MIN _CS_PATH
+#define CS_MAX _CS_POSIX_V6_WIDTH_RESTRICTED_ENVS
+
+extern "C" size_t
+confstr (int in, char *buf, size_t len)
+{
+  if (in >= CS_MIN && in <= CS_MAX)
+    {
+      if (csa[in].l && len)
+	{
+	  buf[0] = 0;
+	  strncat (buf, csa[in].s, min (len, csa[in].l) - 1);
+	}
+      return csa[in].l;
+    }
+  /* Invalid option value. */
+  set_errno (EINVAL);
+  return 0;
+}
-- 
2.43.5